APA

Calvin J., Caxton W., Raleigh W., Heminge J., Spenser E., Newton I., Condell H., Whitman W., Dryden J., Knox J., Fielding H., Hugo V., Taine H., Eliot C. W., Copernicus N., Wordsworth W., Bacon F., Goethe J. W. v. & Johnson S. (2004). Prefaces and Prologues to Famous Books. : Project Gutenberg.

Chicago

Calvin Jean, Caxton William, Raleigh Walter, Heminge John, Spenser Edmund, Newton Isaac, Condell Henry, Whitman Walt, Dryden John, Knox John, Fielding Henry, Hugo Victor, Taine Hippolyte, Eliot Charles William, Copernicus Nicolaus, Wordsworth William, Bacon Francis, Goethe Johann Wolfgang von and Johnson Samuel. 2004. Prefaces and Prologues to Famous Books. : Project Gutenberg.

Harvard

Calvin J., Caxton W., Raleigh W., Heminge J., Spenser E., Newton I., Condell H., Whitman W., Dryden J., Knox J., Fielding H., Hugo V., Taine H., Eliot C. W., Copernicus N., Wordsworth W., Bacon F., Goethe J. W. v. and Johnson S. (2004). Prefaces and Prologues to Famous Books. : Project Gutenberg.

MLA

Calvin Jean, Caxton William, Raleigh Walter, Heminge John, Spenser Edmund, Newton Isaac, Condell Henry, Whitman Walt, Dryden John, Knox John, Fielding Henry, Hugo Victor, Taine Hippolyte, Eliot Charles William, Copernicus Nicolaus, Wordsworth William, Bacon Francis, Goethe Johann Wolfgang von and Johnson Samuel. Prefaces and Prologues to Famous Books. : Project Gutenberg. 2004.